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Visual Load Testing

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Avatar for Marc Huffnagle Marc Huffnagle
April 08, 2013
Programming
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Visual Load Testing

A talk I gave to Data Science Maryland on using visualization in load testing.

Avatar for Marc Huffnagle

Marc Huffnagle

April 08, 2013
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Transcript

  1. Copyright 2013 Visual Load Testing Marc Huffnagle [email protected] Tuesday, April

    9, 13

  2. My background Tuesday, April 9, 13

  3. My background ✤ Developer Tuesday, April 9, 13

  4. My background ✤ Developer ✤ Sysadmin Tuesday, April 9, 13

  5. My background ✤ Developer ✤ Sysadmin ✤ Tester Tuesday, April

    9, 13

  6. My background ✤ Developer ✤ Sysadmin ✤ Tester ✤ Developer

    Tuesday, April 9, 13

  7. My background ✤ Developer ✤ Sysadmin ✤ Tester ✤ Developer

    ✤ Tester Tuesday, April 9, 13

  8. My background ✤ Developer ✤ Sysadmin ✤ Tester ✤ Developer

    ✤ Tester ✤ Sysadmin Tuesday, April 9, 13

  9. My background ✤ Developer ✤ Sysadmin ✤ Tester ✤ Developer

    ✤ Tester ✤ Sysadmin ✤ Developer ... Tuesday, April 9, 13

  10. Goals Tuesday, April 9, 13

  11. Goals ✤ Show how we use visualization when load testing

    ECHO Tuesday, April 9, 13

  12. Goals ✤ Show how we use visualization when load testing

    ECHO ✤ Demonstrate how you can use some of the same techniques Tuesday, April 9, 13

  13. Goals ✤ Show how we use visualization when load testing

    ECHO ✤ Demonstrate how you can use some of the same techniques ✤ Convince you that visualization can be easy Tuesday, April 9, 13

  14. What is ECHO? Earth Observing System Clearing HOuse Tuesday, April

    9, 13

  15. NASA Earth Observing System Tuesday, April 9, 13

  16. https://reverb.echo.nasa.gov/ ECHO Reverb Tuesday, April 9, 13

  17. Our load testing goals Tuesday, April 9, 13

  18. Our load testing goals http://ircimg.net/skeleton-computer-guy.jpg Tuesday, April 9, 13

  19. Our load testing goals http://www.recareered.com/files/2011/03/Turtle-Creative-Commons.jpg Tuesday, April 9, 13

  20. Our load testing goals http://tinyurl.com/cnb5quc Tuesday, April 9, 13

  21. Our load testing goals http://bees.chrisinch.com/wp-content/uploads/2012/04/MoneyBag.jpg Tuesday, April 9, 13

  22. Load Test Environment http://storylineblog.com/wp-content/uploads/2013/03/baby-computer-full.jpg Tuesday, April 9, 13

  23. Load Test Environment Producer Thread Work Queue Worker Thread Worker

    Thread Worker Thread Ruby Process Tuesday, April 9, 13

  24. Sidekiq http://sidekiq.org Simple, efficient message processing for Ruby. Tuesday, April

    9, 13

  25. Tuesday, April 9, 13

  26. Tuesday, April 9, 13

  27. Tuesday, April 9, 13

  28. Load Test Environment Load Test Driver Redis Sidekiq Worker Sidekiq

    Worker Sidekiq Worker Tuesday, April 9, 13

  29. http://farm5.static.flickr.com/4023/4548711373_d70fd58836_o.jpg Tuesday, April 9, 13

  30. We’ll be using visualization for two things: Tuesday, April 9,

    13

  31. We’ll be using visualization for two things: Monitoring Tuesday, April

    9, 13

  32. We’ll be using visualization for two things: Monitoring Metrics Tuesday,

    April 9, 13

  33. Nagios http://www.nagios.org/ Tuesday, April 9, 13

  34. Tuesday, April 9, 13

  35. Graphs of completed jobs Tuesday, April 9, 13

  36. Number of jobs processed Tuesday, April 9, 13

  37. Number of failed jobs Tuesday, April 9, 13

  38. Number of jobs currently running Tuesday, April 9, 13

  39. Number of jobs in the backlog Tuesday, April 9, 13

  40. http://4.bp.blogspot.com/_K4gm2yzgfeo/TJRYOHMNR2I/AAAAAAAAAKM/is6CjOkIIvk/s1600/flight-recorder.jpg Tuesday, April 9, 13

  41. Types of metrics we collect Tuesday, April 9, 13

  42. Types of metrics we collect ✤ Numeric time-series data Tuesday,

    April 9, 13

  43. Types of metrics we collect ✤ Numeric time-series data ✤

    Event-based data Tuesday, April 9, 13

  44. Operational System Load Test System Data Collection Tuesday, April 9,

    13

  45. Very important point: Keep your metrics collection as loosely coupled

    from your system as possible. Tuesday, April 9, 13

  46. It was this guy. Very important point: Keep your metrics

    collection as loosely coupled from your system as possible. Tuesday, April 9, 13

  47. Graphite http://graphite.wikidot.com Tuesday, April 9, 13

  48. What should I store in Graphite? Tuesday, April 9, 13

  49. What should I store in Graphite? Tuesday, April 9, 13

  50. How do I get data into Graphite? ✤ collectd -

    http://collectd.org ✤ logstash - http://www.logstash.net ✤ Anything that can open a socket ✤ echo “my-stat-name 1234 $(date +%s)” | nc graphite-host 2003 Tuesday, April 9, 13

  51. Tuesday, April 9, 13

  52. Tuesday, April 9, 13

  53. Tuesday, April 9, 13

  54. What about those event-based metrics? Tuesday, April 9, 13

  55. http://farm3.static.flickr.com/2799/4481372869_e5ccb9af5d_o.jpg Tuesday, April 9, 13

  56. http://upload.wikimedia.org/wikipedia/commons/c/c7/Logs.jpg Tuesday, April 9, 13

  57. http://upload.wikimedia.org/wikipedia/commons/f/fb/A_few_logs_-_geograph.org.uk_-_57580.jpg Tuesday, April 9, 13

  58. 2013-03-26T13:24:18.012 “GET /catalog-rest/echo_catalog/datasets.xml” 200 1234 1024 Sample Apache access log

    message Tuesday, April 9, 13

  59. 2013-03-26T13:24:18.012 “GET /catalog-rest/echo_catalog/datasets.xml” 200 1234 1024 Sample Apache access log

    message Timestamp Tuesday, April 9, 13

  60. 2013-03-26T13:24:18.012 “GET /catalog-rest/echo_catalog/datasets.xml” 200 1234 1024 Sample Apache access log

    message Timestamp Request Method Tuesday, April 9, 13

  61. 2013-03-26T13:24:18.012 “GET /catalog-rest/echo_catalog/datasets.xml” 200 1234 1024 Sample Apache access log

    message Timestamp Request Method Request Path Tuesday, April 9, 13

  62. 2013-03-26T13:24:18.012 “GET /catalog-rest/echo_catalog/datasets.xml” 200 1234 1024 Sample Apache access log

    message Timestamp Request Method Request Path Status Code Tuesday, April 9, 13

  63. 2013-03-26T13:24:18.012 “GET /catalog-rest/echo_catalog/datasets.xml” 200 1234 1024 Sample Apache access log

    message Timestamp Request Method Request Path Status Code Response Size Tuesday, April 9, 13

  64. 2013-03-26T13:24:18.012 “GET /catalog-rest/echo_catalog/datasets.xml” 200 1234 1024 Sample Apache access log

    message Timestamp Request Method Request Path Status Code Response Size Response Time Tuesday, April 9, 13

  65. 2013-03-26T13:24:18.012 “GET /catalog-rest/echo_catalog/datasets.xml” 200 1234 1024 Sample Apache access log

    message Timestamp Request Method Request Path Status Code Response Size Response Time Tuesday, April 9, 13

  66. http://www.splunk.com Tuesday, April 9, 13

  67. Basic Splunk Search Tuesday, April 9, 13

  68. Basic Splunk Search Query Tuesday, April 9, 13

  69. Basic Splunk Search Query Time period Tuesday, April 9, 13

  70. Basic Splunk Search Query Time period Matching log entries Tuesday,

    April 9, 13

  71. Basic Splunk Search Query Time period Matching log entries Distribution

    graph Tuesday, April 9, 13

  72. Tuesday, April 9, 13

  73. Tuesday, April 9, 13

  74. Tuesday, April 9, 13

  75. Tuesday, April 9, 13

  76. Tuesday, April 9, 13

  77. Tuesday, April 9, 13

  78. Tuesday, April 9, 13

  79. Tuesday, April 9, 13

  80. Tuesday, April 9, 13

  81. Summing it all up Tuesday, April 9, 13

  82. Summing it all up ✤ Visualization helps you grasp what’s

    happening in a complex system Tuesday, April 9, 13

  83. Summing it all up ✤ Visualization helps you grasp what’s

    happening in a complex system ✤ It doesn’t have to be hard Tuesday, April 9, 13

  84. Summing it all up ✤ Visualization helps you grasp what’s

    happening in a complex system ✤ It doesn’t have to be hard ✤ You’re already generating and collecting the data you need to begin visualization Tuesday, April 9, 13

  85. Questions? Tuesday, April 9, 13